Claims
- 1. A process for the preparation of a (cis)-dihalovinylcyclopropanecarboxylic acid of the formula: ##STR10## wherein each of Y.sup.1 and Y.sup.2 independently represents a fluorine, chlorine or bromine atom and each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or an alkyl group having up to 10 carbon atoms, or R.sup.1 and R.sup.2 together represent an alkylene group having from 2 to 5 carbon atoms which comprises treating a compound of the formula ##STR11## wherein Y.sup.1, Y.sup.2, R.sup.1 and R.sup.2 have the above stated meanings, with a base.
- 2. A process according to claim 1, wherein the base is an alkali metal hydroxide, hydride or alkoxide.
- 3. A process according to claim 2 wherein the base is an alkali metal hydroxide.
- 4. A process according to claim 3 wherein the base is sodium hydroxide.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8034067 |
Oct 1980 |
GBX |
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Parent Case Info
This is a division of application Ser. No. 306,106, filed Sept. 28, 1981, now U.S. Pat. No. 4,346,038.
US Referenced Citations (8)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2639777 |
Mar 1977 |
DEX |
1561502 |
Feb 1980 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
306106 |
Sep 1981 |
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